修改页面，完成单页模式新增首页返回上一页按钮

dist/utils/MessageUtil.js

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+(function(e,s){if(typeof module=="object"&&module.exports){module.exports=s(e);return}e.MessageUtil=s(e)})(typeof globalThis!="undefined"?globalThis:window,function(e){"use strict";var s={skin:"auth-layer-message",time:2200};function n(l,a){var i=String(l||""),u=Object.assign({},s,a||{});if(e.layui&&e.layui.layer&&e.layui.layer.msg){e.layui.layer.msg(i,u);return}e.console&&e.console.warn&&e.console.warn(i)}return{show:n}});